Cancer rates are higher in developed countries than in less developed countries
Global health data and epidemiological studies generally demonstrate that cancer incidence rates are higher in developed or high-SDI countries, often due to risk factors associated with industrialization and longer life expectancies, though lower-income regions face rapidly shifting burdens.
The retrieved Global Burden of Disease analyses consistently indicate that age-standardized incidence rates for major cancers are higher in high Socio-demographic Index (SDI) settings compared to less developed regions, supporting the claim while acknowledging faster growth rates in some lower-SDI areas.
Zhou Y, Jiang M, Wu Y, Wang J, Li X, Shen K, He T, Zhang C, Zong H, Wu R, Singla RK, Lv Q, Shen B. Future landscapes of women's hormone-sensitive cancers: unraveling global trends, age stratification, and regional inequities (1990-2035).. 2026. https://doi.org/10.3389/fendo.2026.1691889
The study shows that age-standardized incidence rates of hormone-sensitive cancers increase with higher socio-demographic index (SDI), with lower SDI countries experiencing faster-growing rates from a lower baseline.
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Chen Z, Zheng H, Mao Y, Zhou S, Zhang S, Xu Y, Liu Y, Zhang J, Lu X. Global trends in early-onset liver cancer incidence and projections to 2050 based on the global burden of disease study 2021.. 2026. https://doi.org/10.1007/s12672-026-04940-2
Data from the Global Burden of Disease study demonstrate that age-standardized incidence rates for early-onset liver cancer rose among women in high SDI regions.
Yang H. Has the Introduction of PARP Inhibitors Alleviated the Global, Regional and National Burden of Ovarian Cancer? A Segmented Regression Analysis of the Global Burden of Disease Study, 2007-2021.. 2026. https://doi.org/10.2147/ijwh.s574460
High-income regions exhibit higher age-standardized incidence rates for ovarian cancer, contrasting with rising absolute burdens in low and middle SDI regions.
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